Hydropneumatic reservoir for petrol fuels and the like



May 20, 1930.

M. BACCICH ET AL HYDROPNEUIATIC RESERVOIR FOR PETROL FUELS .AND THE LIKE Filed uimh 21, 1928 //VVEN70HS 777 QCC'ICA C E imp w l the present time Operate by a pressure of at- Patented May 1930 mco BACCICH; mm, AND? CARLO nn-r mrrr, 01+ MILAN, ITALY nnnormemm IR I sEavoIRLroR rnTnoI. rUELs Ann THEIJKE Ap pnmpionf filedllaarch "21, 1923', Serial No. atasaa'gndjh March 22, 1927.

It is known that petroltanks employed at mospheric air obtained in the interior 'ofthe device by means of a large hand pump so as to deliver the supply'liquid to the various Vaporizers and to give the petrol vapour a sufficient velocity for it to mix with the outsideair and to secure complete combustion. I

Such devices present however the followingdisadvantages: r 1. The small'losses of air from, one of the valves of the said pump or from the tank I prevent the latter from working. This occurs in the case, for example, when the piston I normal operation.

washer becomes dried on account of the heat developed by the compression of the air making it no longer possible 'to obtain asufli cient quantity of air and consequently fasut' 'ficient pressure in the tank. I 2.. The difiiculty of maintaining the pumping by hand at a constant pressure is another of the considerable disadvantages because the said pressure varies according as the air. chamber varies insize and according as the liquid (petrol) which issituated therein varice in quantity.

The object of the present provide 'a hydropneumatic petrol tank arrangement adaptedto give the necessary velocity to the petrol. supplying the various burners in use, for example, for hot baths, heating rooms, for heaters, for lighting lamps, for kitchens, for soldering lamps, etc. I

This is obtained by employing the pres sure which exists 'invthe citywater'pipes, withoutthe possibility of damaging in any way the said pipesor interfering with their The accompanying. drawing illustrates by way of example an embodiment of the subject of the present inventionandin particular it represents a hydropneumatic tank viewed in medial sectional elevation,

In this drawing, 1 is the tank made of metal (iron, copper etc.) 5 i s' a wall dividing the tank into two'chambers of calculated size; is the chamber reserved for the petrol; is a tube for protecting and -jguidingthe stem of the float -7?;and the hollow valve -7",, 8 a pipe esinvention is to 'The filling plug in the hole :moved and the petrol is poured in as'desired- 'tablishing communication between the small chamber 8 and the chamber 3 is the petrol supply opening; 9- is a manometer; 10 is a tubefordrawing petrol from the bottom ofthe said chamber or tank; 1l is a glass tube indicating the level of sition and ,completely"empty the chamber Y 43 is filled with petrol throng-lithe filling hole which is then closed hermetically. The emptying tap 13 being closed city PATENT o FFl -E.

' the petr-ol; 12 is'a tap for admitting the water is admitted through the tap l2.

The atmospheric'air which was stored inside thetank is compressed as the water which is admitted into the saidtank rises,

When thedesired pressure is obtained,which will be indicated by'the manometer w'9 the admission of water may be cut off by closing the tap 12+" althoughfthe latter may be left ope'ncontinually. It isjto'be noted that the pressureofi the city' water in rooms or shop'smay be inversely proportional to their height abovethe ground, being in the region of 1 kg. uponthe fifth floor and 4 kg, on thegroun dzfloor'; with a mean pressure lot 1% kg.' per square centimetre the pressure remains always more than-sufficient forthe' operation of the apparatus in question.

The air thus compressed passes through? the pipe 4,"hole "1 6 andpipe into the'chamber reserved for the petrol','thus exerting a pressure on thelatte'rj This pressure willbe indicated on the ma nometer 9.' Thepetrol thus compressedwill be ejected through-the tube -10 and through thesmall' tap- 15 in order to atomize' atthe various burners.

In orderto remove the compression and provide a supply of petrol the tap 12- is closed (that is' if it ISYOPGII) and the discharge tap 13 of the water is opened. I

The fillin'g hole is thenclosed and also gthe mp .-13+, the" ma i remaining open 1 during the whole filling in order'to give the "water time to run outfland be replaced by, 1 atmospheric air.

is a. safety'float,a alve' whioh operates in the following "manner: a V

If before orfaftel; theadmiss ml f.

. petrol th efta'p' hasfac eidentallyriot been closed and the tap 12 is opened the as it. Wouldaenconrrter noresistan'vce (in'the;

r i part ofthe atmospheric air. The. float V-'7- V and thev float Valve-+7 would be raised; a o l l e v mun ca iqn, orific 1 5j'hlsethusjprevenmng th -w e m @119 tering the chamber containing the.

together.

Th; hollow"valve gfl proylded with all orifice'for the passage of the eomf- V I v B9 19 an th 'wq liquids-be oming m d an orifice placed' bottomlofi the latter,

means for admitting Water I Q he water 1 chamber,- a tap for discharging water from saidjwatei chamber,-'mear1's for admitting petrol into thepetrol chamber, a cock-for the? outflow of the petrolirom said petrol :oham

a afloat i tone w t nlszhambeiz, and w v n s'l d 'm l a m me a diralijf l' aotuated bysaid float to olo'se the air chamher when 7 a predetermined amount of water has been, admitted, to the Water. chamber. 1

' In testimony whereof weafli x ol r signa i MARCO BACdiCH} 1 pressed air intended in'ther oaseJoffa-lifting .7

movement to It is gob apparatus" in qnesf'prodiil ce the closure ofthe ori- 2 tion may be c ns ructediri vari us form While preserving'thebasic principle of op eration, that is to say'that the, two tanks. may V 1 be arranged one' -ins ide' 'the other over the V whole or apart of the. total length, or one 30L outside the other and that theposition of'the members rm ay be. changed;

7 Having now particularly 1 described and .aseertalnedthefnature of our ea d nvent on andfln hat manner: the 'same is to be per- 7 formed; We declare that hat we olai m is I i liquid elevator eomprising a tank fp d in e med e fiit en s wi a Pa t tionffo; form two-chambers in superposed r relation e in? m lyr disP -tnb 4a" lar member :i-Ii i1%per-chamber;andopening ie'tdth ow r q V the uppe ham er; m ns admitt n water under pressurefinto said lower chamber, an 0utlet;f0r the waterat thelower part V I f he an co dui on es t said' upp -member,;a' floatiin said lower chamber, and a yal've in sa id' tubular "member; said valve being actuated by-said float to close'said con- 1 -@s napre rm nedamount zwa er t hasbeen a'dmi edrto said lower chamber 7 g ,2. An eleyator for petrol ,fuels or 7 like compr singa tank p'roi ided'interfmediate its 7 nds th a P r ion o fo m w chambers 'in superposedrelation therein; the-under 1 chamber being designed to-"receive water whilst the "upper ha ber 7 serves as, a; re ervoir forthepetrQlia-small-a'ir chamber dis: j posed uponsaid petrolehamber, a pipe ej s- I 3; tablishing' communication between the. small.

airQchamber-andthe petrol; Chamber, a tub};- a z em ntra lydisp d th petro Chamber nd efining a its und r end t Chamber Wit-hthe interiorzof said; t1 1bulari r V ambere o go itl t-j i theywater Chamber whilst it; communicates F flii titsupnerfliwfihth in amhenthrough" 7 

